If the Sun is 4.6 billion years old, how many times has it orbited the Milky Way galaxy? (The Sun is 8,300 pc from the center of the Milky Way, and orbits the center at a speed of 225 km/s.) times
Q: Suppose that the outer stars of a galaxy have an orbital velocity of 150 km/s. If the radius of the…
A: Given data: rgalaxy=4 kpcv=150 km/s Need to determine the orbital period of the outer stars.
Q: The Apollo program (not the lunar missions with astronauts) being conducted at the Apache Point…
A: The spped of the ligth v=3×105m/ss=384,472km
Q: Calculate the number of miles in a light-year, using 1.86 105 mi/s as the speed of light. (Hint:…
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Q: In the deep space between galaxies, the density of atoms is as low as 106 atoms/m3, and the…
A: To determine,Part aThe pressure in the Pa.part bWhat volume (in m3) is occupied by 5 mol of gas.part…
Q: The New Horizons probe is currently traveling at 14.1 km/s. How long would it take to reach Proxima…
A: speed of probe (v) = 14.1 kms= 14100 msdistance (d) = 4 light years
Q: If a standard passenger aircraft can fly at 0.27 km/s (604 mph), how long (in yr) would it take to…
A: The problem is based upon distance time relation. We know that distance is the length. For very…
Q: If the speed of light is given as 299,792,458 meters per second and the wavelength is 478 nm. what…
A: Given velocity of light c = 299,792,458 m/s wavelength of light λ= 478 nm we have to calculate the…
Q: If a group of galaxies is revolving around its center at 240 miles/sec how fast is it moving in…
A: Let the galaxy's speed be denoted by v. The speed of the galaxies is 240 miles per second.
Q: given: a (distance to center of galaxy in AU) = 1,717,914,439 AU P (suns orbital period in years)…
A: Given: a (distance to center of galaxy in AU) = 1,717,914,439 AU P (suns orbital period in years) =…
Q: random times over the last 1010 years. The rate of star formation is simply the number of stars…
A: Number of stars in our milky Way galaxy is N=9×1010 Time taken in the formation of a plane
Q: Galaxy B moves away from galaxy A at 0.519 times the speed of light. Galaxy C moves away from galaxy…
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Q: What if the Andromeda galaxy were to disappear How long before we would notice?
A: About 2.5 million light-years separate our solar system from the Andromeda galaxy. If it vanished,…
Q: Astrophysicists estimate that there are about 100 billion galaxies in the universe, and thaton…
A: Question : Which is larger ? The number of stars in the universe or number of grains of…
Q: Suppose there are 12000.0 civil actions broadcasting radio signals in the Milky Way Galaxy at the…
A: Given that There are 12000 civil actions broadcasting radio signals in the milky way galaxy at the…
Q: Calculate the age of the universe for the following Hubble's constant, (b) 65 km/s/Mpc
A: As per Hubble's law, the universe is expanding. If we assume that the expansion's apparent velocity…
Q: Let's say that the number density of galaxies in the universe is, on average, 3 × 10–68 galaxies/m3.…
A: Given :number density of galaxies, n = 3 × 10–68 galaxies/m3 Observable distance by…
Q: In the deep space between galaxies, the density of atoms is as low as 106 atoms/m3, and the…
A:
Q: If the active core of a galaxy contains a black hole of 10°M, (1 million solar masses), what will…
A: mass of black hole, M=106 MΘ=106*2*1030=2*1036 Kg radius of orbit,r=0.33 Au=0.33*1.5*1011=0.495*1011…
Q: If the Sun is 4.6 billion years old, how many times has it orbited the Milky Way galaxy?
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Q: the sun has an orbital speed of about 220kms^-1 around the centre of the galaxy , whose distance is…
A: orbital speed of sun = 220 kms= 220000 msdistance = 28000 light years
Q: Suppose that stars were born at random times over the last 1010 years. The rate of star formation is…
A: Given that, The total number of stars in the Milky way is N=8×1011 And the stars were born at random…
Q: What is the estimated age of the Universe (in years) if the Hubble constant is 70 km/s/Mpc?
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Q: Your astronaut twin brother is exploring a planet of a star far out in space. Ignoring the time…
A: Brother's age 2 years for 1 year of my age⇒ t∘=t , t'=2t
Q: Find the approximate mass of the dark and luminous matter in the Milky Way galaxy. Assume the…
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Q: How many galaxies are there in the universe?
A: A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and…
Q: If the Hubble's constant was 100 km/s/Mpc instead of 70 km/s/Mpc what would be the estimated age of…
A: It was observed that the galaxies were moving away from us. Edwin Hubble calculated their recession…
Q: Consider three periods in the history of the Universe: one million years after the Big Bang (age = 1…
A: In early times, the Universe was expanding at a rapid pace. Then, the rate of expansion of the…
Q: The disk of the Milky Way galaxy contains roughly 200 billion (1 billion = 109 ) stars. The disk is…
A: The milky way galaxy consists of a disk of about 100000 ly diameter and a thickness of about 1000 ly…
Q: If the sun is 4.6 billion years old, how many times has it orbited the Milky Way? (The sun is 8,300…
A:
Q: Calculate the age of the universe for the following Hubble's constant, m (c) 80 km/s/Mpc Of
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Q: If you find a galaxy that is the same size and mass as our Milky Way Galaxy, what orbital velocity…
A: Mass of our galaxy (M1): 4.0 X 1011 M Semi-major axis of the orbit (a): 51 kpc
Q: Let's say that the number density of galaxies in the universe is, on average, 3 × 10–68 galaxies/m3.…
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Q: Most of the dark matter in a galaxy is located in a galaxy's (hint: one word) which allows the…
A: It is a fill in the blank.
Q: 2. The diameter of our Milky Way is roughly - 105 ly(light-year). Planet X at the edge of our Milky…
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Q: Based on comparison with the Moon, it can be calculated that Andromeda would have to have a diameter…
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- In the reading, you were told that there were roughly 10,000 galaxies in the image of the Hubble Ultra Deep Field alone. The image is roughly 10 square arcminutes and there are roughly 1.5*10^8 square arcminutes composing the entire sky. With that in mind and assuming that the Hubble Ultra Deep Field represents an average part of the sky, roughly how many galaxies may exist in the observable universe? (Please include commas for every factor of 1,000; for example 2,343,567,890)How many times longer than the length of recorded history is the age of the universe? I was also given that the length of recorded history is 10E11 s, and that the age of the universe is 10E18 s. But, when putting 10E18/10E11 = 10E7, I get the wrong answer.Assume that a typical galaxy contains about 200 billion stars and that there are more than 150 billion galaxies in the known universe. Estimate the total number of stars in the universe.
- If the Sun's mass is about average, how many stars are there in the Milky Way galaxy? The mass of the Sun is of the order of 1030 kg and the mass of the Milky Way galaxy is of the order of 1042 kg.If a standard passenger aircraft can fly at 0.32 km/s (716 mph), how long (in yr) would it take to reach the sun? ______ yr How long (In yr) would it take to reach the galactic center? (Note: 1 pc = 3.1 x 10^13 km. The radius of the suns orbit around the galactic center is approximately 8,300 pc.) ______ yrIf the speed of light is given as 299,792,458 meters per second and the wavelength is 560 nm. what is the frequency of this light? Give your answer in THz!
- T/ F The distance unit best for interstellar distances is the light-year. ___ The distance unit best for intergalactic distances is the mega-parsec. ___If Jim could drive a Jetson's flying car at a constant speed of 330 km/hr across oceans and space, approximately how long (in millions of years, in 106 years) would he take to drive to a nearby star that is 8.7 light-years away? Use 9.461 × 1012 km/light-year and 8766 hours per year (365.25 days).The Universe is approximately 13.8 Billion years old. What is the volume of the visible universe in m3?